All treadmills have a MAXIMUM USER CAPACITY, but often the data is not real as sometimes even small treadmills with modest technical characteristics report a maximum user weight of 110/120 kg on the card.
We carried out some DYNAMIC tests (i.e. running) on the treadmills and we found that a person of 80 kg can exert a pressure of 120 kg during the run on the carpet, the run on the treadmill is a jump run (different from running on Street).